Commands of Christ-12g
The peacemaker gets involved to bring peace. If a child is doing something destructive, the parent confronts the child to bring about an end to the destructive behavior. If a marriage is on the verge of implosion, then the peacemaker confronts the problem to resolve it and foster love and peace in the marriage. If there are problems or sinful behavior in the church, the peacemaker deals with it so sin does not fester in the church family.
The peace that the Scriptures refer to that bring blessing, does not come from avoiding problems or matters that demand attention, it comes from facing them, dealing with them, and solving them. What this beatitude demands is not the passive acceptance of uncomfortable or bad things because we are afraid of the trouble of doing anything about them, but the active confrontation of things, and the making of peace, even when the way to peace is through difficulty, risk, and struggles. The peacemaker wages peace, which may sometimes bring trouble, to bring about eventual peace. Peace is the ultimate and eventual goal.